Cryptic crossword No 2,228

Across

1. Officially recorded working rank (2,4)
2. Double meaning undone in tangle (8)
3. Draw group album cover (8)
4. Extraordinarily slim and so spry (6)
5. First off Dave is going into the way in which data is represented in computers  (6)
6. Fanatical dogs eat in magistrates offices (7)
7. Drink and engage in foreplay (4)
8. Daughter with spacious corner store (5)
9. Bill left bedsit going backwards (4)
10. Reserve protest disrupted street axis (7)
11. Fakir’s child shows spirit (6)
12. Came without daughter to make the big time  (6)
13. Hopeful American flag around new president (8)
14. More like us compared to people from another planet, say (8)
15. Hold your horses in position near to the ground (3,3)

Down

1. Like weeds at home I have outside Virginia's ...  (8)
2. ... brother's daughter not enthusiastic at first but pleasant (4)
3. No rest confused singers (6)
4.  Buck's mate oddly shy leaves party (4)
5. Here Come the Warm Jets musician happy around the French B-29 (5,3)
6. Adjudicates on the pitch of the players (4)
7. Dreadful old god in Mexico consuming uncle’s head (6)
8. Quietly leaves, avoided upset (5)
9. Unknown son died rising around artificial intelligence starts a kind of chain (5)
10. Impromptu dorm part-house (5)
11. Having tendency to misspell some of milady's lexicon (8)
12. Two jumpers share this cowboy (8)
13. Sheep looking up and down for grass (6)
14. Set fire to books online (6)
15. Mad about, right from start (4)
16. Head of ward old nurse overworked (4)
17. Male catching morning cough to attract attention  (4)